Feasibility of Liquid Desiccant Cooling (LDC) system under Mediterranean climate

Source:
By:Seifennasr Sabek

DOI: https://doi.org/10.30564/jaeser.v2i1.387

Abstract:

Contrary to the conventional air conditioning systems, the liquid desiccant cooling (LDC) systems are considered efficient systems to control the indoor air conditions. In addition, the LDC technologies are more adequate for the hot and humid climates. In this paper, we present an analytical investigation at assessing the feasibility of a LDC technology under Mediterranean climate. The mathematical equations including the sensible and latent heat transfer equations in both air stream and desiccant solution are presented. The impacts of climatic and operating parameters on the supplied air qualities, moisture removal rate (MRR) and sensible heat ratio (SHR) are evaluated. As a consequence, this study provides a solution to investigate the feasibility of this type of air conditioning technologies under hot and humid climate.

References:

[1] Perez-Lombard L, Ortiz J, Pout C. A review on buildings energy consumption information. Energy and Building 2008;40: 394-398. [2] Wang J, Zhai Z H, Zhang C, Jing Y. Environmental impact analysis of BCHP system in different climate zones in China. Energy 2010;35: 4208-4216. [3] Sanjeev J, Sagun T, Rajat S D. Experimental performance of a liquid desiccant dehumidification system under tropical climates. Energy Conversion and Management 2011;52: 2461-2466. [4] Min T, Cheng-Qin R, Guang-Fa T, Zhen-Sheng Z. Performance comparison between two novel configurations of liquid desiccant air-conditioning system. Building and Environment 2010;45: 2808-2816. [5] Min , Cheng-Qin R, Long-Ai Z, Jian-Wei S. Simulation and analysis of a novel liquid desiccant air-conditioning system. Applied Thermal Engineering 2009;29: 2417-2425. [6] Xiao F, Gaoming G, Xiaofeng N. Control performance of a dedicated outdoor air system adopting liquid desiccant dehumidification. Applied Energy 2011;88: 143-149. [7] Gaoming G, Xiao F, Xiaofeng N. Control strategies for a liquid desiccant air-conditioning system. Energy and Buildings 2011;43: 1499-1507. [8] Wang R Z, Ge T S, Chen C J, Ma Q, Xiong Z Q. Solar sorption cooling systems for residential applications: Options and guidelines. International Journal of Refrigeration 2009;32: 638-660. [9] Gommed K, Grossman G. Experimental investigation of a liquid desiccant system for solar cooling and dehumidification. Solar Energy 2007;81: 131-138. [10] Gommed k, Grossman G. Investigation of an improved solar-powered open absorption system for cooling, dehumidification and air conditioning. International Journal of Refrigeration 2012;35: 676-684. [11] Ma Q, Wang R Z, Dai Y J, Zhai X Q. Performance analysis on a hybrid air conditioning system of a green building. Energy and building 2006;38: 447-453. [12] Gerardo D. Numerical investigation of transient heat and mass transfer in a parallel-flow liquid-desiccant absorber. Heat and Mass Transfer 2010;46: 1335-1344. [13] Koronaki I P, Christodoulaki R I, Papaefthimiou V D, Rogdakis E D. Thermo-dynamic analysis of a counter flow adiabatic dehumidifier with different liquid desiccant materials. Applied Thermal Engineering 2013;50: 361-373. [14] Gommed K, Grossman G. A liquid desiccant system for solar cooling and dehumidification. Solar Energy Engineering ASME 2004;126: 879. [15] Dong L, Yanjun D, Yong L, Tianshu G, Ruzhu W. Study on a novel thermally driven air conditioning system with desiccant dehumidification and regenerative evaporative cooling. Building and Environment 2010;45: 2473-2484. [16] Yonggao Y, Xiaosong Z, Chen Z. Experimental study on dehumidifier and regenerator of liquid desiccant cooling air conditioning system. Building and Environment 2007;42: 2505-2511. [17] Sanjeev J, Sagun T, Rajat S D. Experimental performance of liquid desiccant dehumidification system under tropical climates. Energy Conversion and Management 2011;52: 2461-2466. [18] Crofoota L, Stephen H. Performance evaluation of a liquid desiccant solar air conditioning system. Energy Procedia 2012;30: 542-550. [19] Zhang L, Hihara E, Matsuoka F, Dang C. Experimental analysis of mass transfer in adiabatic structured packing dehumidifier/regenerator with liquid desiccant. International Journal of Heat and Mass Transfer 2010;53: 2856-2863. [20] Dai Y J, Zhang H F. Numerical simulation and theoretical analysis of heat and mass transfer in a cross flow liquid desiccant air dehumidifier packed with honey-comb paper. Energy Conversion and Management 2004;45: 1343-1356. [21] Agung B, Fatkhur R, Kwang H C. A novel method to evaluate the performance of liquid desiccant air dehumidifier system. Energy Building 2012;44: 39-44. [22] Ren C, Jiang Y, Zhang Y. Simplified analysis of coupled heat and mass transfer processes in packed bed liquid desiccant-air contact system. Solar Energy 2006;80: 121-131. [23] Liu X H, Jiang Y, Chang X M, Yi X Q. Experimental investigation of the heat and mass transfer between air and liquid desiccant in a cross-flow regenerator. Renewable Energy 2007;32: 1623-1636. [24] Abdul-Wahab S A, Zurigat Y H, Abu-Arabi M K. Predictions of moisture removal rate and dehumidification effectiveness for structured liquid desiccant air dehumidifier. Energy 2004;29: 19-34. [25] Mesquita L C S, Harrison S J, Thomey D. Modeling of heat and mass transfer in parallel plate liquid-desiccant dehumidifiers. Solar Energy 2006;80: 1475-1482. [26] Gao W Z, Liu J H, Cheng Y P, Zhang X L. Experimental investigation on the heat and mass transfer between air and liquid desiccant in a cross-flow dehumidifier. Renewable Energy 2012;37: 117-123. [27] Tao Z, Xiaohua L, Jingjing J, Xiaoming C, Yi J. Experimental analysis of an internally-cooled liquid desiccant dehumidifier. Building and Environment 2013;63: 1-10. [28] Yonggao Y, Xiaosong Z, Donggen P, Xiuwei L. Model validation and case study on internally cooled /heated dehumidifier /regenerator of liquid desiccant systems. International Journal of Thermal Science 2009;48: 1664-1671. [29] Yonggao Y, Xiaosong Z. Comparative study on internally heated and adiabatic regenerators in liquid desiccant air conditioning system. Building and Environment 2010;45: 1799-1807. [30] Ahmed H A, Gaoming G, Carey J S. Thermo-economic performance of a solar membrane liquid desiccant air conditioning system. Solar Energy 2014;102: 56-73. [31] Ahmed H A, Carey J S. Annual evaluation of energy, environmental and economic performances of a membrane liquid desiccant air conditioning system with/without ERV. Applied Energy 2014;116: 134-148. [32] Pietruschka D, Eicker U, Huber M, Schumacer J. Experimental performance analysis and modeling of liquid desiccant cooling systems for air conditioning in residential buildings. International Journal of Refrigeration 2006;29: 110-124. [33] Longo G A, Gasparella A. Experimental and theoretical analysis of heat and mass transfer in a packed column dehumidifier/ regenerator with liquid desiccant. International Journal of Heat and Mass Transfer 2005;48: 5240-5254. [34] Conde M R. Properties of aqueous solutions of lithium and calcium chlorides: formulations for use in air conditioning equipment design. International Journal of Thermal of Science 2004;43: 367-382. [35] Barenbrug A W T. Psychrometry and Psychrometric Charts. Cape &Transvaal Printers Ltd, 1974. [36] Shuli Liu. A Novel Heat Recovery/Desiccant Cooling System. University of Nottingham, Thesis Ph.D 2008. [37] Ahmed H A, Gaoming G, Carey J S. Performance analysis of a membrane liquid desiccant air-conditioning system. Energy and Building 2013;62: 559-569. [38] Balghouthi M, Chahbani M H, Guizani A. Feasibility of solar absorption air conditioning in Tunisia. Building and Environment 2008;43: 1459-1470.